Struct RHashView 

#[repr(C)]
pub struct RHashView {
    pub data: *mut c_void,
    pub vtable: *const RHashVTable,
}

Runtime view for objects implementing RHash. Generated from source location line 139, column 11. Generated from source file miniextendr-api/src/adapter_traits.rs.

Combines a data pointer with a vtable pointer for method dispatch. Use try_from_sexp to create a view from an R external pointer.

Fields

data: *mut c_void

Pointer to the concrete object data.

vtable: *const RHashVTable

Pointer to the vtable for this trait.

Implementations

impl RHashView

pub unsafe fn try_from_sexp(sexp: SEXP) -> Option<Self>

Try to create a view from an R SEXP.

Returns Some(Self) if the object implements this trait, None otherwise.

Safety

• sexp must be a valid R external pointer (EXTPTRSXP)
• Must be called on R’s main thread

pub unsafe fn from_sexp(sexp: SEXP) -> Self

Try to create a view, panicking with error message on failure.

Safety

Same as try_from_sexp.

pub fn hash(&self) -> String

Call hash through the vtable.

Trait Implementations

impl TraitView for RHashView

const TAG: mx_tag = TAG_RHASH

The type tag for this trait.

unsafe fn from_raw_parts(data: *mut c_void, vtable: *const c_void) -> Self

Create a view from raw data and vtable pointers.

unsafe fn try_from_sexp(sexp: SEXP) -> Option<Self>

Try to create a view from an R SEXP.

unsafe fn try_from_sexp_or_error( sexp: SEXP, trait_name: &str, ) -> Result<Self, String>

Try to create a view, returning an error message on failure.

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes